Natural Cave & Karst
Phong Nha Cave & Paradise Cave (Động Phong Nha & Động Thiên Đường)
Subterranean river caverns inside UNESCO-listed Phong Nha-Ke Bang National Park, entered by Son River dragon boat and wooden forest boardwalks.

Why Visit Phong Nha Cave & Paradise Cave
Carved through 400-million-year-old Paleozoic limestone, Phong Nha Cave preserves 9th-century Cham rock inscriptions inside Bi Ky Grotto and served as a sheltered hospital and ferry hideout during the war.
What to See: 1.5 km underground river boat journey with engines cut inside Phong Nha Cave • Bi Ky Grotto Cham altars and fairy sandbanks • 1 km illuminated wooden boardwalk inside nearby Paradise Cave (Dong Thien Duong)
Local Visitor Tips:
- Wait 10 minutes at the Son Trach boat counter to split the 550,000 VND dragon boat charter with other travelers if visiting solo or as a couple.